Jeff is shopping for a used car. He will put $4000 down, and finance the rest with 48 monthly payments at an interest rate of 6%.
If he can afford monthly payments of $400 per month, about what would be the price of the most
expensive car that he can afford?

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297